1. The state of being or appearing to be actively engaged in an activity (synset 114031535)
    "they manifested all the busyness of a pack of beavers"; "there is a constant hum of military preparation"
  2. An Islamic fundamentalist group in Pakistan that fought the Soviet Union in Afghanistan in the 1980s;
    Now operates as a terrorist organization primarily in Kashmir and seeks Kashmir's accession by Pakistan (synset 108039725)
  3. A humming noise (synset 107400403)
    "the hum of distant traffic"
  1. Sing with closed lips (synset 201057701)
    "She hummed a melody"
  2. Be noisy with activity (synset 202712465)
    "This office is buzzing with activity"
  3. Sound with a monotonous hum (synset 202191487)
  4. Make a low continuous sound (synset 201058086)
    "The refrigerator is humming"

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